What/how to overwinter?

I've got a lot more plants in pots than this time last year and I'm unsure what to prioritise for in the greenhouse. I've a a few shelves free and then the free floor space, but not everything will go. I thought if I post a list someone might know what needs to go in and what might be ok left out in a sheltered spot. All the pots are plastic.

Daylilys (all in 2 ltr pots)
2 small and 1 large hebe
Hydrangeas, 2 small lacecaps and 2 large common ones
A large edgeworthia chrysantha (will prob go in as was quite expensive to buy)
Many potted roses, all named and grafted I.e. Not rugosa. Maybe prune these and put in shed or garage?
A perennial wallflower (Bowles mauve)
2 small camelia (forming buds now)

Really appreciate the advise as feeling a bit stuck!

 

I'll be watching for answers as well as I have a pretty geranium that I grew from seed and am wondering if I can store it/overwinter it too.

Thanks for asking.

 

Hi Charlie,

Unfortunately you don't say where you're from so I'm just taking it as average UK conditions.

The Edgworthia is only described as" frost hardy " so it may need a little extra protection if it does get below 0 deg.
Day Lilys, Hydrangea, Roses, Wallflower are all fully hardy.
The Camellia is also full hardy however a late frost may damage some flowers.

 

Hi Lori,

I'm a bit more cautious in my reply to you as I'm not sure of your conditions.

If it's a hardy Geranium I would keep it in for this winter as it's grown from seed and then plant it out in it's permanent position when all danger of frost has passed .

If it's a Pelargonium, then they are tender perennials so definitely keep inside over winter.

 

Charlie most of what you have there seems pretty hardy to me.
Thinking most would come through outside even, perhaps with the protection of a house wall facing south.

 

All the Hebe's should be fine outside but sheltered, near the house wall possibly.

 

The edgeworthia is the only one I would be concerned with as I have a feeling its going to be a harsh winter.

Camelia are Hardy, but as already stated, frost cant damage the blooms. The issue with these however is early morning sun on the frosted blooms so a west facing position is best.

I am going to hazard a guess that this is a Pelargonium? If so, they can take some cold and frost, but not alot so best bring indoors or into a frost free greenhouse. I had a lot which survived outside and unprotected last year, but dont think I will get so lucky this year, I think its gonna be a cold one.

 

I am London based so a little warmer than some of you but everything but the edgeworthia are planted in my garden and have all survived even the coldest winters, as other say a bit of frost damage on the camelia but soon recovers. The edgeworthia is only hardy to -5 to -7 but you say that is one you definitely plan to take in. Pelargoniums are not really hardy although I kept all of mine outside, in pots, but sheltered last winter which gave me a fabulous early show this year and they are still growing strong, if it is precious I would bring it in. I don't know if others find things are less tolerant of the cold in pots - any views on that?

 

Plants are definitely less hardy in pots than if grown in the ground, mainly because the roots can freeze if we get a prolonged cold spell.

This then means the plant can actually die of drought.

 

Thanks Pete,

I thought that might be the case. I don't really keep much in pots too much work watering them and always a problem if you are away. I no longer have a greenhouse but I do have some tender agapanthus and some calla lilies that I put in the garage and ignore. Pelargoniums, begonias and other summer bedding I leave in a sheltered spot and if they make it it's a bonus, if not I just buy new.

 

Just had a thought Charlie,

The Bowles Mauve wallflower is really, really easy to take cuttings from so next year take a few and you can overwinter these little ones undercover and risk the bigger one ( and it will be bigger next year) outside - they aren't that long lived anyway

 

Thanks @Flower Painter i have already got lots of baby plants but still want to keep as much as I can, typical gardener.
I will leave the Bowles mauve, large hebe and large hydrangeas out then and try to fit the rest in the greenhouse. Edgeworthia is definitely coming in.
The roses I could pop in the shed I guess as they will be dormant anyway. Here's hoping the winter isn't too harsh.

 

@pete and @Sheal I only have East and North facing walls, but the North one is a kind of alleyway with the garage one side and a lower wall the other so that could be ok. Thanks for the advice everyone.